<?php

namespace Library\Util;

class PathTree {

    /**
     * 生成树型结构所需要的2维数组
     * @var array
     */
    public $arr = array();

    /**
     * 生成树型结构所需修饰符号，可以换成图片
     * @var array
     */
    public $icon = array('│', '├', '└');
    public $nbsp = "&nbsp;";

    public function init($arr = array()) {
        $this->arr = $arr;
        return is_array($arr);
    }

    public function get_tree() {
        $array = $this->arr;
        foreach ($array as $key => $r) {
            $level = count(explode("-", $r["path"])) - 1;
            $array[$key]["level"] = $level;
            $array[$key]["spacer"] = $this->get_spacer($level - 1);
        }
        return $array;
    }

    public function get_spacer($count) {
        $spacer = "";
        for ($i = 0; $i < $count; $i++) {
            $spacer.=$this->nbsp;
        }
        return $spacer;
    }

}
